Finding the Fourth Proportional to 138,319.65, 207,479.48 and 136,246.05
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Solution
The fourth proportional to 138,319.65, 207,479.48 and 136,246.05 is: 204,369.08
Step by Step Solution
- Step 1: Write the proportion equation
138,319.65 : 207,479.48 = 136,246.05 : x - Step 2: Convert to fraction form
138,319.65/207,479.48 = 136,246.05/x - Step 3: Cross multiply
138,319.65x = 207,479.48 × 136,246.05 - Step 4: Simplify right side
138,319.65x = 28,268,258,924.82 - Step 5: Solve for x
x = 28,268,258,924.82/138,319.65 - Step 6: Final answer
x = 204,369.08
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.